Preparation method of silane crosslinked ethylene-vinyl acetate copolymer adhesive film

A technology of ethylene vinyl acetate copolymer glue and ethylene vinyl acetate, applied in the direction of graft polymer adhesives, adhesives, film/sheet adhesives, etc., can solve the problem of affecting product quality, low production efficiency, and easy production Problems such as rubber materials, to achieve the effect of shortening lamination time, improving production efficiency, and improving lamination efficiency
CN103131336BActive Publication Date: 2015-06-10SUZHOU DUCHAMPS ADVANCED MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU DUCHAMPS ADVANCED MATERIALS CO LTD
Publication Date
2015-06-10

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Abstract

The invention discloses a preparation method of a silane crosslinked ethylene-vinyl acetate copolymer adhesive film, which comprises the following steps: evenly mixing a composition, extruding, casting, cooling, drawing, and coiling to obtain the silane crosslinked ethylene-vinyl acetate copolymer adhesive film, wherein the extruding processing temperature is 100-150 DEG C; and the composition comprises the following components in parts by mass: 100 parts of ethylene-vinyl acetate copolymer, 0.1-2 parts of silane coupling agent A, 0.1-2 parts of silane coupling agent B and 0.01-0.2 part of organic peroxide. According to the invention, silane crosslinking is late crosslinking, crosslinking reaction does not need to be performed in a laminating machine, and the packaging of an assembly can be finished by simply pressurizing for 5-8 minutes under conventional treatment conditions in the vacuum laminating machine, thus greatly improving the laminating efficiency and saving the production cost.
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Description

technical field

[0001] The invention relates to a preparation method of a silane-crosslinked ethylene-vinyl acetate copolymer adhesive film. Background technique

[0002] At present, solar power is becoming the most important new energy. Solar cells are the core part of the solar power generation system, and also the most valuable part of the solar power generation system. The quality and cost of solar cells will directly determine the quality and cost of the entire system.

[0003] The conventional solar cell packaging structure is as follows: the upper layer is tempered glass, the middle layer is the cell, the lower layer is the back sheet, and there is one or two layers of ethylene vinyl acetate copolymer film between the glass and the cell, and between the cell and the back sheet (EVA film) firmly bonds the various layers of materials. EVA film is an important packaging material for solar cells. In order to ensure the long-term effective outdoor work of the packaged s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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